Abstract:
:Dissociated embryonic rat ventral mesencephalon containing the developing A8-A10 dopamine (DA) neurons was cultured alone or in the presence of a 10 mm segment of adult rat sciatic nerve that had been explanted and maintained in separate culture for 72 hours prior to introduction to mesencephalic cultures. Nerve segments were contained in a co-culture basket, so that midbrain cells and nerve shared medium but were not in physical contact. The number and morphology of cultured DA neurons was assessed via immunocytochemistry for tyrosine hydroxylase (TH). Co-cultures of ventral midbrain tissue and nerve exhibited an increased number of TH-positive neurons, with larger neuronal perikarya, and increased length and complexity of neurites, than cultures of midbrain tissue alone. Increased number and growth of TH-positive neurons was obtained with as little as 2 days of exposure to nerve. This evidence suggests that a diffusible, soluble factor(s) from sciatic nerve can enhance the number and development of TH-positive neurons detected in cultures of embryonic ventral mesencephalon.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Collier TJ,Sladek CD,Gallagher MJ,Gereau RW 4th,Springer JEdoi
10.1002/jnr.490270318subject
Has Abstractpub_date
1990-11-01 00:00:00pages
394-9issue
3eissn
0360-4012issn
1097-4547journal_volume
27pub_type
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journal_title:Journal of neuroscience research
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journal_title:Journal of neuroscience research
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